Bump verif/core-v-verif from 6779193 to 76b887f

Bumps [verif/core-v-verif](https://github.com/openhwgroup/core-v-verif) from `6779193` to `76b887f`.
- [Release notes](https://github.com/openhwgroup/core-v-verif/releases)
- [Commits](openhwgroup/core-v-verif@6779193...76b887f)

---
updated-dependencies:
- dependency-name: verif/core-v-verif
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>